MolluscaBase taxon details
Vermetus triquetrus Bivona e Bernardi, 1832
141944 (urn:lsid:marinespecies.org:taxname:141944)
accepted
Species
Bivonia triquetra (Bivona e Bernardi, 1832) · unaccepted
Bivonia triquetra var. aletes Monterosato, 1892 · unaccepted (synonym)
Bivonia triquetra var. fascicularis Mörch, 1862 · unaccepted (synonym)
Bivonia triquetra var. serpulina Mörch, 1862 · unaccepted (synonym)
Bivonia triquetra var. unicarinata Monterosato, 1917 · unaccepted
Vermetus (Bivonia) gregarius Monterosato, 1892 · unaccepted (synonym)
Vermetus (Bivonia) triquetra Bivona e Bernardi, 1832 † · unaccepted > superseded combination
Vermetus gregarius Monterosato, 1878 · unaccepted
Vermetus gregarius var. solitaria Monterosato, 1892 · unaccepted (synonym)
Vermetus gregarius var. typica Monterosato, 1892 · unaccepted (synonym)
Vermetus triqueter [sic] · unaccepted (misspelling of Vermetus...)
misspelling of Vermetus triquetrus Bivona Ant., 1832
Vermetus triqueter f. bicarinatus Monterosato, 1892 · unaccepted (junior primary homonym)
Vermetus triqueter f. discoideus Monterosato, 1892 · unaccepted (junior primary homonym)
Vermetus triqueter f. repens Monterosato, 1892 · unaccepted (junior primary homonym)
Vermetus triqueter var. bicarinata Monterosato, 1892 · unaccepted (synonym)
Vermetus triqueter var. discoidea Monterosato, 1892 · unaccepted (synonym)
Vermetus triqueter var. repens Monterosato, 1892 · unaccepted (synonym)
marine, brackish, fresh, terrestrial
Bivona-Bernardi Ant. (1832). Caratteri dei vermeti desunti da cinque specie che abitano nel mare di Palermo. <i>Effemeride Scientifiche e Letterarie per la Sicilia</i> 1: 59-62 [stated date february 1832]; 2: 3-8, pl. 2 [april] , available online at http://www.biodiversitylibrary.org/page/10183723
page(s): 6-7 [details]
page(s): 6-7 [details]
Note Palermo, Sicily
From editor or global species database
Type locality Palermo, Sicily [details]
MolluscaBase eds. (2025). MolluscaBase. Vermetus triquetrus Bivona e Bernardi, 1832. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=141944 on 2025-09-10
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original description
Bivona-Bernardi Ant. (1832). Caratteri dei vermeti desunti da cinque specie che abitano nel mare di Palermo. <i>Effemeride Scientifiche e Letterarie per la Sicilia</i> 1: 59-62 [stated date february 1832]; 2: 3-8, pl. 2 [april] , available online at http://www.biodiversitylibrary.org/page/10183723
page(s): 6-7 [details]
original description (of Vermetus triqueter f. discoideus Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 26 [details]
original description (of Vermetus gregarius Monterosato, 1878) Monterosato, T. A. di. (1878). Enumerazione e sinonimia delle Conchiglie mediterranee. <em>Giornale di Scienze Naturali ed Economiche.</em> 13: 61-115 [December 31st, 1878]., available online at http://biodiversitylibrary.org/page/35333762
page(s): 88 [details]
original description (of Vermetus triqueter f. repens Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27 [details]
original description (of Vermetus triqueter f. bicarinatus Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27 [details]
original description (of Bivonia triquetra var. unicarinata Monterosato, 1917) Monterosato, T. A. di. (1917). Molluschi viventi e quaternari raccolti lungo le coste della Tripolitania dall'ing. Camillo Crema. <em>Bollettino della Società Zoologica Italiana.</em> ser. 3, 4: 1-28, pl. 1 [December 31st 1917]., available online at https://www.biodiversitylibrary.org/page/58455884
page(s): 16 [details]
original description (of Vermetus (Bivonia) gregarius Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 28-29, p. 2 fig. 1-3 [details]
original description (of Bivonia triquetra var. aletes Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27; pl. 2 fig. 8 [details]
original description (of Vermetus triqueter var. discoidea Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 26; pl. 2 fig. 5-7 [details]
original description (of Vermetus triqueter var. repens Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27; pl. 2 fig. 9 [details]
original description (of Vermetus triqueter var. bicarinata Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27; pl. 2 fig. 4 [details]
original description (of Vermetus gregarius var. solitaria Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 28-29 [details]
original description (of Vermetus gregarius var. typica Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 28 [details]
original description (of Bivonia triquetra var. fascicularis Mörch, 1862) Mörch [Mørch], O. A. L. (1861). Review of the Vermetidae (Part I). <em>Proceedings of the Zoological Society of London.</em> 1861: 145-181, pl. 25 [September]., available online at https://www.biodiversitylibrary.org/page/28672669 [details]
original description (of Bivonia triquetra var. serpulina Mörch, 1862) Mörch [Mørch], O. A. L. (1861). Review of the Vermetidae (Part I). <em>Proceedings of the Zoological Society of London.</em> 1861: 145-181, pl. 25 [September]., available online at https://www.biodiversitylibrary.org/page/28672669
page(s): 64 [details]
basis of record Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Patrimoines Naturels.</em> 50: 180-213., available online at http://www.vliz.be/imisdocs/publications/ocrd/254404.pdf [details]
additional source Bieler, R. & Petit, R. E. (2011). Catalogue of Recent and fossil “worm-snail” taxa of the families Vermetidae, Siliquariidae, and Turritellidae (Mollusca: Caenogastropoda). <em>Zootaxa.</em> 2948: 1-103., available online at http://www.mapress.com/zootaxa/2011/f/zt02948p103.pdf
page(s): 65 [details] Available for editors
[request]
additional source Golding, R. E.; Bieler, R.; Rawlings, T. A.; Collins, T. M. (2014). Deconstructing <i>Dendropoma</i>: a systematic revision of a world-wide worm-snail group with descriptions of new genera (Caenogastropoda: Vermetidae). <em>Malacologia.</em> 57(1): 1-97.
page(s): 9 [details] Available for editors [request]
page(s): 6-7 [details]
original description (of Vermetus triqueter f. discoideus Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 26 [details]
original description (of Vermetus gregarius Monterosato, 1878) Monterosato, T. A. di. (1878). Enumerazione e sinonimia delle Conchiglie mediterranee. <em>Giornale di Scienze Naturali ed Economiche.</em> 13: 61-115 [December 31st, 1878]., available online at http://biodiversitylibrary.org/page/35333762
page(s): 88 [details]
original description (of Vermetus triqueter f. repens Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27 [details]
original description (of Vermetus triqueter f. bicarinatus Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27 [details]
original description (of Bivonia triquetra var. unicarinata Monterosato, 1917) Monterosato, T. A. di. (1917). Molluschi viventi e quaternari raccolti lungo le coste della Tripolitania dall'ing. Camillo Crema. <em>Bollettino della Società Zoologica Italiana.</em> ser. 3, 4: 1-28, pl. 1 [December 31st 1917]., available online at https://www.biodiversitylibrary.org/page/58455884
page(s): 16 [details]
original description (of Vermetus (Bivonia) gregarius Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 28-29, p. 2 fig. 1-3 [details]
original description (of Bivonia triquetra var. aletes Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27; pl. 2 fig. 8 [details]
original description (of Vermetus triqueter var. discoidea Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 26; pl. 2 fig. 5-7 [details]
original description (of Vermetus triqueter var. repens Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27; pl. 2 fig. 9 [details]
original description (of Vermetus triqueter var. bicarinata Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 27; pl. 2 fig. 4 [details]
original description (of Vermetus gregarius var. solitaria Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 28-29 [details]
original description (of Vermetus gregarius var. typica Monterosato, 1892) Monterosato, T. A. di. (1892). Monografia dei Vermeti del Mediterraneo. <em>Bullettino della Società Malacologica Italiana.</em> 17 (1–3): 7–48; pls I–VII [August 25th, 1892]., available online at https://biodiversitylibrary.org/page/39076083
page(s): 28 [details]
original description (of Bivonia triquetra var. fascicularis Mörch, 1862) Mörch [Mørch], O. A. L. (1861). Review of the Vermetidae (Part I). <em>Proceedings of the Zoological Society of London.</em> 1861: 145-181, pl. 25 [September]., available online at https://www.biodiversitylibrary.org/page/28672669 [details]
original description (of Bivonia triquetra var. serpulina Mörch, 1862) Mörch [Mørch], O. A. L. (1861). Review of the Vermetidae (Part I). <em>Proceedings of the Zoological Society of London.</em> 1861: 145-181, pl. 25 [September]., available online at https://www.biodiversitylibrary.org/page/28672669
page(s): 64 [details]
basis of record Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Patrimoines Naturels.</em> 50: 180-213., available online at http://www.vliz.be/imisdocs/publications/ocrd/254404.pdf [details]
additional source Bieler, R. & Petit, R. E. (2011). Catalogue of Recent and fossil “worm-snail” taxa of the families Vermetidae, Siliquariidae, and Turritellidae (Mollusca: Caenogastropoda). <em>Zootaxa.</em> 2948: 1-103., available online at http://www.mapress.com/zootaxa/2011/f/zt02948p103.pdf
page(s): 65 [details] Available for editors
[request]additional source Golding, R. E.; Bieler, R.; Rawlings, T. A.; Collins, T. M. (2014). Deconstructing <i>Dendropoma</i>: a systematic revision of a world-wide worm-snail group with descriptions of new genera (Caenogastropoda: Vermetidae). <em>Malacologia.</em> 57(1): 1-97.
page(s): 9 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Spelling Bivona-Bernardi introduced the name as Vermetus triquetrus, using the correctly formed Latin suffix –quetrus, meaning angled, cornered, or sided. Philippi (1836: 170, pl. 9, figs. 21, 22, 22a) changed this name to Vermetus triqueter, a spelling followed by many subsequent authors but considered an incorrect subsequent spelling without nomenclatural status by Bieler (1995: 182). [details]Type locality Palermo, Sicily [details]
To GB Mollusca Types (Vermetus gregarius Monterosato, 1878; Syntype(s); NMINH:1887.1571.1) (from synonym Vermetus gregarius Monterosato, 1878)
To Malacopics (Vermetus triquetrus Bivona e Bernardi, 1832 Spain, Islas Baleares, Formentera, Es Calo, beached, collected July 1992, ex coll. J. Trausel)
To Malacopics (Vermetus triquetrus Bivona e Bernardi, 1832)
To Malacopics (Vermetus triquetrus Bivona e Bernardi, 1832 Spain, Islas Baleares, Formentera, Es Calo, beached, collected July 1992, ex coll. J. Trausel)
To Malacopics (Vermetus triquetrus Bivona e Bernardi, 1832)
From editor or global species database
Hosted externally, from synonym
Unreviewed
Hosted externally
Hosted externally
